Homicide squad investigates fatal M1 crash

The New South Wales homicide squad is investigating the death of a man, involved in a head-on collision on the M1 Pacific Motorway on the Central Coast earlier this month.

Several police investigations are underway into the accident, which happened when a car travelling on the wrong side of the M1 collided with another at Mooney Mooney two weeks ago.

The 39-year-old driver of the car travelling in the wrong direction died.

At the time, police said he was arrested when officers arrived at the scene and died on the way to Gosford Hospital.

But questions are being raised about his death, with the Homicide Squad now involved in the investigation.

In a statement, the State Crime Command says it is unable to comment but maintains a critical incident has been established because a person has died in an incident involving a level of police interaction.